tyre pressure gt3

[franki68]

My gt3 has 5500 miles on it ,bought new in march last year and the tyre pressures are the same since the day I bought it,and yes I have used a good monitor to check the TPM on the car is accurate.
This I find very odd unless they are filled with nitrogen ???

[av185]

Black wheels?

If so apparantly they retain tyre pressures better than silver or titanium.

[Nuttcase]

Same. I replaced Cup2s last June and have not lost a psi. Definitely unusual as all my other cars I've had to top them up every 4 to 6 months regardless of miles.

Wheels are gloss black but never heard that correlation before

[franki68]

av185 said:

Black wheels?

If so apparantly they retain tyre pressures better than silver or titanium.

They are but how on earth does that help retain tyre pressure ? Plus I have had black wheels on the lambo and that required air.

[av185]

No idea to be honest but I've heard this off various people with black Porsche wheels so whether its possibly to do with this coating retaining air as opposed to standard alloys and sat plat being more porous?

Mine are mostly satin plat wheels....March 18 GT3 lost a couple of pounds over 12 months.

It is quite bizarre!